Chichester-Clark was elected for Londonderry at the 1955 general election. He was the third generation of politicians from his family. His grandfather represented Londonderry at Westminster; his grandmother and father were members of the Northern Ireland parliament. His brother James Chichester-Clark was Prime Minister of Northern Ireland from 1969 to 1971, but resigned in the face of increasing violence and internal Ulster Unionist Party splits. The family were also active in politics in the 19th century and Chichester-Clark's great great grandfather, The Rt. Hon. George Robert Dawson was Member of Parliament for Londonderry, later for an English constituency, before joining the Government of Sir Robert Peel whose sister Mary he married. They lived at Castledawson. Chichester-Clark was consistently either a Front Bench Spokesman for the Opposition or a member of the Government of Harold Macmillan and, later, Edward Heath. He held the position of Assistant Government Whip, Lord Commissioner of the Treasury, Comptroller of the Household, was Conservative Spokesman for Northern Ireland and on the Arts, Shadow Minister of Public Building and Works and, ultimately, Minister of State for Employment. In 1970 he remained outside the UK government because of the Premiership of his brother in Northern Ireland. When Edward Heath suspended the Stormont Government and Parliament in 1972, he asked Chichester-Clark to go with William Whitelaw to Northern Ireland as Minister of State. Chichester-Clark did not accept but later joined the administration as Minister of State for Employment. Before the first 1974 Election he announced his retirement from the Londonderry constituency and did not put himself forward for reselection.
Later life
Since 1974 he has worked as a director of companies in the construction industry, as a political adviser to the NFBTE, as a management consultant and as Chairman of the medical research charity RAFT and The Arvon Foundation. He has also helped with fundraising for the Royal Philharmonic Orchestra and is now involved with the development of the Museum of Illustration. Chichester-Clark was interviewed in 2012 and 2014 as part of The History of Parliament's oral history project.
Personal life
He was first married to Jane Helen Goddard, daughter of Air Marshall Sir Robert Victor Goddard, KCB, CB. With Jane Goddard he had three children, Emma, Mark and Sophia. His second wife was the barrister Caroline Bull, daughter of the transport executive Anthony Bull. The couple had two sons; Adam and Thomas. Chichester-Clark's sister, Penelope Hobhouse, is a gardener, gardening writer and historian.